Specifications:1) Displacement: 25.4cbm / 2.5cu.in.2) Maximum power: 0.9kW / 2.5HP3) Rotate speed: 8,500rpm4) Work rotate speed: 6,000 - 10,000rpm5) Economy net weight: 4.9kg6) Vibrations front / blank handle: 4.8m/s2 / 6.5m/s27) pole body: multilayered type8) Guide bar size: 12 - 16"9) Chain saw pitch: 3/8"10) Chain gauge: 0.050"11) Carburetor brand: Walbro®12) Chainsaws brand: Oregon® / Carlton®